Final answer:
The Seabees were established on March 5, 1942, during World War II. They were a construction battalion of the United States Navy and played a crucial role in building infrastructure during the war.
Step-by-step explanation:
The Seabees were established on March 5, 1942, during World War II. They were created as a construction battalion of the United States Navy and were responsible for building forward operating bases, airstrips, roads, and other infrastructure to support military operations. The Seabees played a vital role in the Allied Forces' success in the Pacific theater, including notable operations like the invasion of Iwo Jima and the D-Day invasion of Normandy.